def get_chosen_strings(self, v_idx, n_idx):
        v_idx_np = to_np(v_idx)
        n_idx_np = to_np(n_idx)
        res_str = []
        for i in range(n_idx_np.shape[0]):
            v, n = self.verb_map[v_idx_np[i]], self.noun_map[n_idx_np[i]]
            res_str.append(self.word_vocab[v] + " " + self.word_vocab[n])
        return res_str